grafana/pkg/services/alerting/notifiers/discord.go
2017-03-22 23:28:55 +01:00

115 lines
3.1 KiB
Go

package notifiers
import (
"strconv"
"strings"
"github.com/grafana/grafana/pkg/bus"
"github.com/grafana/grafana/pkg/components/simplejson"
"github.com/grafana/grafana/pkg/log"
"github.com/grafana/grafana/pkg/metrics"
m "github.com/grafana/grafana/pkg/models"
"github.com/grafana/grafana/pkg/services/alerting"
"github.com/grafana/grafana/pkg/setting"
)
func init() {
alerting.RegisterNotifier(&alerting.NotifierPlugin{
Type: "discord",
Name: "Discord",
Description: "Sends notifications to Discord",
Factory: NewDiscordNotifier,
OptionsTemplate: `
<h3 class="page-heading">Discord settings</h3>
<div class="gf-form">
<span class="gf-form-label width-14">Webhook URL</span>
<input type="text" required class="gf-form-input max-width-22" ng-model="ctrl.model.settings.url" placeholder="Discord webhook URL"></input>
</div>
`,
})
}
func NewDiscordNotifier(model *m.AlertNotification) (alerting.Notifier, error) {
url := model.Settings.Get("url").MustString()
if url == "" {
return nil, alerting.ValidationError{Reason: "Could not find webhook url property in settings"}
}
return &DiscordNotifier{
NotifierBase: NewNotifierBase(model.Id, model.IsDefault, model.Name, model.Type, model.Settings),
WebhookURL: url,
log: log.New("alerting.notifier.discord"),
}, nil
}
type DiscordNotifier struct {
NotifierBase
WebhookURL string
log log.Logger
}
func (this *DiscordNotifier) Notify(evalContext *alerting.EvalContext) error {
this.log.Info("Sending alert notification to", "webhook_url", this.WebhookURL)
metrics.M_Alerting_Notification_Sent_Discord.Inc(1)
ruleUrl, err := evalContext.GetRuleUrl()
if err != nil {
this.log.Error("Failed get rule link", "error", err)
return err
}
bodyJSON := simplejson.New()
bodyJSON.Set("username", "Grafana")
fields := make([]map[string]interface{}, 0)
for _, evt := range evalContext.EvalMatches {
fields = append(fields, map[string]interface{}{
"name": evt.Metric,
"value": evt.Value,
"inline": true,
})
}
footer := map[string]interface{}{
"text": "Grafana v" + setting.BuildVersion,
"icon_url": "https://grafana.com/assets/img/fav32.png",
}
color, _ := strconv.ParseInt(strings.TrimLeft(evalContext.GetStateModel().Color, "#"), 16, 0)
image := map[string]interface{}{
"url": evalContext.ImagePublicUrl,
}
embed := simplejson.New()
embed.Set("title", evalContext.GetNotificationTitle())
//Discord takes integer for color
embed.Set("color", color)
embed.Set("url", ruleUrl)
embed.Set("description", evalContext.Rule.Message)
embed.Set("type", "rich")
embed.Set("fields", fields)
embed.Set("footer", footer)
embed.Set("image", image)
bodyJSON.Set("embeds", []interface{}{embed})
body, _ := bodyJSON.MarshalJSON()
this.log.Info("Message", string(body))
cmd := &m.SendWebhookSync{
Url: this.WebhookURL,
Body: string(body),
HttpMethod: "POST",
}
if err := bus.DispatchCtx(evalContext.Ctx, cmd); err != nil {
this.log.Error("Failed to send notification to Discord", "error", err, "body", string(body))
return err
}
return nil
}